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Finding the Fourth Proportional to 453,640.20, 680,460.30 and 254,574.60

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Solution

The fourth proportional to 453,640.20, 680,460.30 and 254,574.60 is: 381,861.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,640.20 : 680,460.30 = 254,574.60 : x
  2. Step 2: Convert to fraction form
    453,640.20/680,460.30 = 254,574.60/x
  3. Step 3: Cross multiply
    453,640.20x = 680,460.30 × 254,574.60
  4. Step 4: Simplify right side
    453,640.20x = 173,227,908,688.38
  5. Step 5: Solve for x
    x = 173,227,908,688.38/453,640.20
  6. Step 6: Final answer
    x = 381,861.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.